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A member asked:
Can a tb skin test be positive if person had tb in the past?
3 doctors weighed in across 2 answers
Tuberculin test: Yes. If you were exposed to TB but do not develop the disease, you can also test positive.
Answered 1/5/2019
5.7k views
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Yes: Exception will be the ones who had a latent TB and received a prophylactic inh treatment for 9 months. Their reaction to tuberculin test can become negative.
Answered 6/10/2014
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If you have a positive tuberculosis skin test does that mean latent or active tb?
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